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In page Oswald Spengler:

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In 1911, following his mother's death, he moved to Munich, where he lived for the rest of his life. While there, he was a cloistered scholar, supported by his modest inheritance. Spengler survived on very limited means and was marked by loneliness. He owned no books, and took work as a tutor and wrote for magazines to earn additional income. Due to a severe heart problem, Spengler was exempted from military service.[2] During the war, his inheritance was useless because it was invested overseas; thus, he lived in genuine poverty for this period.[citation needed]